Design, Construction and Evaluation of a Fan Speed Controller in a Forced Convection Solar Dryer to Optimize the Overall Energy Efficiency
作者： S. Mohtasebi , A. Keyhani , G. H. Mansoori , Sh. Rafee , A. R. Alimardani
DOI:
关键词: Electronic speed control 、 Forced convection 、 Control system 、 Solar dryer 、 Automatic control 、 Energy conservation 、 Process engineering 、 Control theory 、 Environmental science 、 Efficient energy use
摘要: To increase agricultural crops’ quality and to minimize losses in the final product used energy during drying process, major system parameters should be continuously controlled. Precise control of such is attained by using automatic systems. optimize overall dryer efficiency a forced convective solar dryer, controller was designed, constructed evaluated. The fan speed chosen controlled variable. Based upon mathematical relations monitoring air inlet temperature collector, outlet from collector chamber, determined. Using program current optimized efficiencies were calculated, compared changed accordingly maintain efficiency. Experiments carried out three replications (in days) with results showing that capable controlling obtain optimum equipped designed worked its highest throughout day. Statistical analysis showed highly improved operation at 1% probability level.
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